I was in our local drum shop the other day and there was gentleman there talking with the guy who runs the repair shop and asking about pricing for a WMP Ludwig kit that he wanted to have rewrapped.
I heard "vintage WMP Ludwig" and just had to eavesdrop. The gentleman with the kit was lamenting the fact that he had pulled his old drums out of storage and the tom toms he had added in the 70's did not match the rest of the kit which he had purchased in the 60's. So he was inquiring about having the kit all rewrapped to match.
Mind you now the guy he was talking to makes a living from working on these drums and as I listened I realized he was talking this gentleman out of rewrapping this vintage kit. The repair guy was so skillful in admiring the fact that this gentleman owned a vintage WMP kit. He said he always felt that the yellowing was a "badge of courage" that told the story of a vintage drum kit which had been played out and survived to tell the story. He told about his own WMP Radio Kings with a beautiful creamy yellow finish, and that he loved the color and that he would never rewrap his own kit.
I was standing there like a little kid thinking.. "gee mister, tell more stories about the brave old drums."
I'd say clean'em and enjoy them.... vintage WMP is really beautiful.
:2Cents: